145387699 has 2 divisors, whose sum is σ = 145387700. Its totient is φ = 145387698.

The previous prime is 145387691. The next prime is 145387703. The reversal of 145387699 is 996783541.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145387699 - 2³ = 145387691 is a prime.

It is a super-2 number, since 2×145387699² = 42275166041029202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145387691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72693849 + 72693850.

It is an arithmetic number, because the mean of its divisors is an integer number (72693850).

Almost surely, 2^145387699 is an apocalyptic number.

145387699 is a deficient number, since it is larger than the sum of its proper divisors (1).

145387699 is an equidigital number, since it uses as much as digits as its factorization.

145387699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 52.

The square root of 145387699 is about 12057.6821570317. The cubic root of 145387699 is about 525.8266029100.

The spelling of 145387699 in words is "one hundred forty-five million, three hundred eighty-seven thousand, six hundred ninety-nine".